<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<link rel="stylesheet" href="../common.css">
<style>
    div {
        width: 500px;
        height: 100px;
        background: orange;
        border-top-right-radius: 250px 15px;
        border-bottom-left-radius: 250px 15px;

    }
</style>

<body>
    <div></div>
</body>

</html>